1103132311 has 4 divisors (see below), whose sum is σ = 1103746624. Its totient is φ = 1102518000.

The previous prime is 1103132299. The next prime is 1103132321. The reversal of 1103132311 is 1132313011.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1103132311 - 2¹¹ = 1103130263 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1103132321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 304455 + ... + 308056.

It is an arithmetic number, because the mean of its divisors is an integer number (275936656).

Almost surely, 2^1103132311 is an apocalyptic number.

1103132311 is the 14854-th centered decagonal number.

1103132311 is a deficient number, since it is larger than the sum of its proper divisors (614313).

1103132311 is an equidigital number, since it uses as much as digits as its factorization.

1103132311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 614312.

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 1103132311 is about 33213.4357000296. The cubic root of 1103132311 is about 1033.2590118474.

Adding to 1103132311 its reverse (1132313011), we get a palindrome (2235445322).

The spelling of 1103132311 in words is "one billion, one hundred three million, one hundred thirty-two thousand, three hundred eleven".